We have had nothing but great success with this pulley system. You will not be disappointed when you pull the trigger. PM if you have any additional questions I can answer for you?
Here is another Mach 1 member's testimonial "Steeda pulleys offer the best and will not blow out you oil pump and toast your motor, any other brand other than Steeda you do take a risk. I say this because Steeda has the pulleys balanced perfectly. I have gotten over 12hp to the wheels and approx 2.35+ mpg better with my Steeda pulleys and have had no problems".
You are in good hands with Steeda.